I have ordered a Plus Four and will be receiving my US version "sometime" in 2023.

I have noticed some discussion on this forum about the sound and noise level of the exhaust options.

In a communication with the Morgan factory, I said that the days of a noisy exhaust no longer excite me... I get enough noise from my 3W. Does the Sport option have any effect on power output or mileage?
The response was short and not very detailed, all the person said was: " I would suggest that not ordering a sports exhaust is the best solution for you"

Anybody here care to expand on the Plus Four exhaust options. I have seen the term "fruity" while describing the exhaust note... fruity means something entirely different in the States.

Is one of the options simply a flapper valve that is opened to bypass the muffler? We did this to our hot rods in the 50's.

Thanks!